Плотность устьиц у сосны обыкновенной разного происхождения в географических культурах Приангарья

Abstract

Stomatal density, needle length and width of different Scots pine provenances were studied in the provenance trial. It was determined that the closest relation is between stomatal density and needle length. Stomatal density and needle length are under great genetic control and closely related by positive correlation. Needle width is to a greater extent under control of temperature factor in the place of trial.